Download RAD Data comm 100 Specifications

TinyBridge-100
FEATURES
• High performance miniature remote
bridge for Fast Ethernet extension
• Wire-speed WAN throughput:
19,700 pps at 10 Mbps
• 10/100BaseT interface
• Synchronous WAN interfaces: V.24,
V.35, V.36, RS-530, X.21, or 4-wire
modem
• Two priority queues according to
802.1p or IP ToS bits
• Fault propagation of WAN error
conditions to LAN port
• Automatic MDIX support
• Compatible with applicable parts of
IEEE 802.3
DESCRIPTION
• TinyBridge-100 is a high performance,
remote, self-learning Ethernet/Fast Ethernet
bridge. Its small size and low cost make it
ideal for sensitive bridging applications, or
as a LAN extender over synchronous WAN.
LAN INTERFACE
• TinyBridge-100 is available with a
10/100BaseT interface. The interface
operates in full or half duplex Ethernet
topologies.
• TinyBridge-100 supports a packet length of
up to 1536 bytes.
• Automatic MDIX allows using straight or
crossed cables for the LAN connection.
• MAC addresses of the LAN to which the
unit is connected are automatically learnt.
Only those frames destined for the remote
LAN are forwarded. The LAN table stores
up to 2048 addresses and is updated
automatically.
• MAC address filtering can be disabled,
allowing all traffic to flow over the WAN link
• TinyBridge-100 has two queues for
handling priority, determined in the
following order:
If the packet received is an Ethernet tag
frame, TinyBridge-100 marks the packet
according to the tag priority (0–7).
0–3: low priority queue
4–7: high priority queue
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Otherwise, TinyBridge-100 marks the
packet according to IP-ToS priority (0–7).
0–3: low priority queue
4–7: high priority queue
Untagged and non-IP frames enter the
low priority queue.
Frames egress from the queues with a 1:2
ratio, two frames with high priority, one
frame with low priority.
• Flow control for full duplex and
backpressure for half duplex are supported.
The buffer holds up to 120 frames.
WAN INTERFACE
• A selection of synchronous WAN interfaces
is available:
V.24/RS-232
V.35
V.36/RS-449
X.21
RS-530.
• A fault on the WAN can be propagated if
fault propagation is enabled; the
TinyBridge-100 shuts down the link and
forces a router to trace another route.
• TinyBridge-100 operates over synchronous
links at data rates of up to 10 Mbps. An
external clock can be supplied for
operation at other bit rates.
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